text: import os
  from typing import List, TextIO
  
  from ..fetcher import Fetcher, register
  
  
  @register(schemes='')
  class FileFetcher(Fetcher):
      def open(self, filepath) -> TextIO:
          return open(filepath)
  
      def listdir(self, dirpath) -> List[str]:
          return os.listdir(dirpath)
  
      def mtime(self, filepath) -> int:
          return int(os.path.getmtime(filepath))
  